Improvement in gun-locks



P. F. CHARPIC.

Gun Lock. Nu 9,934. Patented Aug. 16, 1853.

N- PETERS, PHOTO-LITNOGRAPHER, wAsmNGYON. D

UNITED STATES PATENT Grrrcn.

P. F. OHABPIE, OF MOUNT VERNON, OHIO.

IMPROVEMENT IN GUN-LOCKS.v

Specification forming part of Letters Patent No. 9,5934, dated August 16, 1853.

1'0 all whom it may concern.-

Be it known that I, I. F. OHARPIE, of Mount Vernon, in the county of Knox and State of Ohio, have invented a new and Improved Gun- Lock; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification, in which Figure 1 is a View of the inner side of the plate, showing most of the parts of the lock. In this view the hammer is represented as being down. Fig. 2 is the same view as Fig. 1, but the hammer is represented as being up or cooked. Fig. 3 is an outer View of a portion of the plate, showing the packing which surrounds the curved slot.

Similar letters of reference indicate corresponding parts in each of the several figures.

The nature of my invention consists in con necting the dog of a mainspring to the hammer by means of a screw passing through a curved slot in the lock-plate, in combination with suitable packing encompassing the slot on the outside of the plate. By this combi nation, as will be hereinafter shown, I am enabled to use an extremely simple and useful device for a gun-lock, and to place the principal parts on the inside of the plate, fully protected from moisture.

To enable others skilled the art to make and fully understand my invention, I will proceed to describe it.

A represents the lock-plate, of the ordinary shape and constructed of the usual materials.

B is the hammer, attached to the plate by a screw, a.

O is the lock-spring, the outer end of which is connected by a stirrup, D, to a dog, E. The screw 1), which connects the stirrup with the dog, passes through a curved slot, 0, in

'the plate A and into the hammer B. The .end of the dog opposite the end through which the screw b passes rests upon a stop, (I, which is secured to the plate A. This stop catches into notches 1 and 2, the notch 1 being for the half-cock, and the notch 2 for the full-cock, as will be hereinafter shown.

On the outer side of the plate A, and surrounding the slot 0, there is a circular recess, e, (see Fig. 3,) in which recess is placed suitable packing. The lower and circular end of the hammer B, through the center of which the screw to passes, covers this packing and bears against it. (See Fig. 3, in which the hammer is shown in red.) The object of the packing is to prevent moisture from entering the look through the slot 0.

Operation: WVhen the hammer B is drawn back and raised, the screw 1), moves downward in the slot 0, and the spring 0 is depressed. The dog E moves forward till either notch, as desired, catches upon the end of the stop (I. \Vhen the hammer is fully raised, the notch 2 catches upon the stop, the notch 1 being for the half-cock, and the notch 2 for the full-cock, as aforesaid. The hammer is let fall by the ordinary means of a trigger, which raises the elbow f and frees the notch 2 from the stop, the spring 0 raising the screw 12 in the slot 0 and throwing the hammer down. The end of the dog on which the notches are cut is made to bear upon the stop by the spring 0, as will be readily seen.

The advantages of my improved lock are, first, the thorough protection from moisture, which is prevented from entering the lock by means of the packing; second, the cheapness with which these improved locks can be made.

I do not claim the arrangement of the-hammer, mainspring, and dog as herein shown, for that has been previously used and placed on the outside of the l0ck-plate; but

Vhat I do claim as my invention, and desire to secure by Letters Patent, is

Connecting the dog E to the hammer B by means of a screw, 12, passing through a curved slot, 0, in the plate A, in combination with the packing c, which encompasses the curved slot, by which combination I am enabled to place the mainspring and dog on the inside of the lock-plate and prevent the admission of moisture within the look, as herein set forth.

I. F. GI-IARPIE.

\Vitnesses:

W. H. OOOHRAN, I. II. FO'RSYTH. 

